Base | Representation |
---|---|
bin | 1000001000001… |
… | …11011010011001 |
3 | 11202022022002010 |
4 | 10010013122121 |
5 | 114424002201 |
6 | 10433300133 |
7 | 1455405153 |
oct | 404073231 |
9 | 152268063 |
10 | 68187801 |
11 | 35543560 |
12 | 1aa04649 |
13 | 11185a16 |
14 | 90adad3 |
15 | 5ebdbd6 |
hex | 4107699 |
68187801 has 16 divisors (see below), whose sum is σ = 103495680. Its totient is φ = 39528720.
The previous prime is 68187773. The next prime is 68187841. The reversal of 68187801 is 10878186.
It is not a de Polignac number, because 68187801 - 211 = 68185753 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68187801.
It is not an unprimeable number, because it can be changed into a prime (68187841) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44161 + ... + 45678.
It is an arithmetic number, because the mean of its divisors is an integer number (6468480).
Almost surely, 268187801 is an apocalyptic number.
It is an amenable number.
68187801 is a deficient number, since it is larger than the sum of its proper divisors (35307879).
68187801 is a wasteful number, since it uses less digits than its factorization.
68187801 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89876.
The product of its (nonzero) digits is 21504, while the sum is 39.
The square root of 68187801 is about 8257.5905081325. The cubic root of 68187801 is about 408.5409191722.
The spelling of 68187801 in words is "sixty-eight million, one hundred eighty-seven thousand, eight hundred one".
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